Multilayer body and container

Abstract

The present invention provides a multilayer body, a packaging material and a container, each of which can maintain excellent water repellent properties and non-adhesive properties. Specifically, the present invention describes a non-adhesive multilayer body wherein hydrophobic oxide fine particles having an average primary particle diameter of 3-100 nm adhere to at least a part of the outermost layer.

Description

TECHNICAL FIELD[0001]The present invention relates to a multilayer body and container, and, in particular, to the technology described below.[0002]The present invention relates to a multilayer body and a packaging material. It relates in particular to a multilayer body for use in tablecloths, napkins, aprons, table covers, floor mats, wall coverings, wallpaper, labels, release paper, tags, chair covers, water resistant sheets, umbrellas, ski wear, construction materials, bed covers, shoe surface materials, shoe covers, waterproof clothing, water repellant films, water repellant sheets and the like, and to a packaging material for use in packaging foods, drinks, medicines, cosmetics, chemical products and the like.[0003]The present invention also relates to a non-adhesive container, and to a manufacturing method therefor. In particular, it relates to a container having superior non-adherence of the contents, and to a manufacturing method therefor. More specifically, it relates to a n...

AI Technical Summary

Benefits of technology

[0054]The multilayer body and packaging material of the first invention can exhibit good water repellency and non-adhesive properties (or soil resistance). In particular, detachment of the hydrophobic oxide fine particles can be effectively reduced or prevented and good water repellency and non-adhesive properties can be effectively maintained when particulate filler comprising at least one of an organic component and an inorganic component is included in a layer containing a thermoplastic resin (herein sometimes called a “thermoplastic resin layer”).

[0055]Moreover, it is possible to obtain excellent and lasting non-adhesive properties while maintaining good thermal adhesive properties when a thermoplastic resin layer is used as the thermal adhesive layer in the multilayer body or packaging material of the first invention. That is, good non-adhesive properties can be obtained without inhibiting the thermal adhesive properties in a practical sense, and without being affected by limitations on the type, thickness or the like of the thermal adhesive layer. More specifically, the hydrophobic oxide fine particles in the region of thermal adhesion do not inhibit the thermal adhesive properties because they become embedded in the thermal adhesive layer during the thermal adhesion process, while the hydrophobic oxide fine particles outside the region of thermal adhesion can provide strong non-adhesive properties because the particles are retained as is on the thermal adhesive layer.

[0056]Such a multilayer body can be used favorably in tablecloths, napkins, aprons, table covers, floor mats, wall coverings, wallpaper, labels, release paper, tags, chair covers, water resistant sheets, umbrellas, ski wear, construction materials, bed covers, shoe surface materials, shoe covers, waterproof clothing, water repellant films, water repellant sheets and the like. This multilayer body can also be used favorably as a packaging material for packaging foods, drinks, medicines, cosmetics, chemical

Problems solved by technology

However, the following problem remains even if a packaging material satisfies all of these requirements.

When the contents adhere to the packaging material it is d

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